X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fmem%2Fmem.h;fp=ccan%2Fmem%2Fmem.h;h=06a1b7a1f2411150147d043cc0bfdbf7635967e8;hp=68a4aa3c18885c207a9fd11828bc5174bead6905;hb=299170fa67ff3cf664cbcd2c95c4a85d0d6e699d;hpb=78abb5376a7d6c2b8508ca37b4a7609c98ec2293

diff --git a/ccan/mem/mem.h b/ccan/mem/mem.h
index 68a4aa3c..06a1b7a1 100644
--- a/ccan/mem/mem.h
+++ b/ccan/mem/mem.h
@@ -144,6 +144,19 @@ static inline bool memstarts(void const *data, size_t data_len,
  *	}
  */
 PURE_FUNCTION
+bool memeqzero(const void *data, size_t length);
+
+/**
+ * memeqzero - Is a byte array all zeroes?
+ * @data: byte array
+ * @length: length of @data in bytes
+ *
+ * Example:
+ *	if (memeqzero(somebytes, bytes_len)) {
+ *		printf("somebytes == 0!\n");
+ *	}
+ */
+PURE_FUNCTION
 static inline bool memeqstr(const void *data, size_t length, const char *string)
 {
 	return memeq(data, length, string, strlen(string));